Key Speakers At Apple's Worldwide Developer Conference

Bloomberg

Apple Inc.'s new MacBook Pro, with retina display, right, and an older version of the MacBook Pro are arranged for a photograph in San Francisco, California, U.S., on Monday, June 11, 2012. Apple is releasing a fresh lineup of computers and software tools to woo consumers and keep developers making applications amid accelerating rivalry from Google Inc., Microsoft Corp. and, now, Facebook Inc. Photographer: David Paul Morris/Bloomberg via Getty Images

Apple Inc.'s new MacBook Pro, with retina display, right, and an older version of the MacBook Pro are arranged for a photograph in San Francisco, California, U.S., on Monday, June 11, 2012. Apple is releasing a fresh lineup of computers and software tools to woo consumers and keep developers making applications amid accelerating rivalry from Google Inc., Microsoft Corp. and, now, Facebook Inc. Photographer: David Paul Morris/Bloomberg via Getty Images

Key Speakers At Apple's Worldwide Developer Conference

Bloomberg

Apple Inc.'s new MacBook Pro, with retina display, top, and an older version of the MacBook Pro are arranged for a photograph in San Francisco, California, U.S., on Monday, June 11, 2012. Apple is releasing a fresh lineup of computers and software tools to woo consumers and keep developers making applications amid accelerating rivalry from Google Inc., Microsoft Corp. and, now, Facebook Inc. Photographer: David Paul Morris/Bloomberg via Getty Images

Apple Inc.'s new MacBook Pro, with retina display, top, and an older version of the MacBook Pro are arranged for a photograph in San Francisco, California, U.S., on Monday, June 11, 2012. Apple is releasing a fresh lineup of computers and software tools to woo consumers and keep developers making applications amid accelerating rivalry from Google Inc., Microsoft Corp. and, now, Facebook Inc. Photographer: David Paul Morris/Bloomberg via Getty Images

Key Speakers At Apple's Worldwide Developer Conference

Bloomberg

Apple Inc.'s new MacBook Pro, with retina display, top, and an older version of the MacBook Pro are arranged for a photograph in San Francisco, California, U.S., on Monday, June 11, 2012. Apple is releasing a fresh lineup of computers and software tools to woo consumers and keep developers making applications amid accelerating rivalry from Google Inc., Microsoft Corp. and, now, Facebook Inc. Photographer: David Paul Morris/Bloomberg via Getty Images

Apple Inc.'s new MacBook Pro, with retina display, top, and an older version of the MacBook Pro are arranged for a photograph in San Francisco, California, U.S., on Monday, June 11, 2012. Apple is releasing a fresh lineup of computers and software tools to woo consumers and keep developers making applications amid accelerating rivalry from Google Inc., Microsoft Corp. and, now, Facebook Inc. Photographer: David Paul Morris/Bloomberg via Getty Images

Key Speakers At Apple's Worldwide Developer Conference

Bloomberg

Apple Inc.'s new MacBook Pro, with retina display, top, and an older version of the MacBook Pro are arranged for a photograph in San Francisco, California, U.S., on Monday, June 11, 2012. Apple is releasing a fresh lineup of computers and software tools to woo consumers and keep developers making applications amid accelerating rivalry from Google Inc., Microsoft Corp. and, now, Facebook Inc. Photographer: David Paul Morris/Bloomberg via Getty Images

Apple Inc.'s new MacBook Pro, with retina display, top, and an older version of the MacBook Pro are arranged for a photograph in San Francisco, California, U.S., on Monday, June 11, 2012. Apple is releasing a fresh lineup of computers and software tools to woo consumers and keep developers making applications amid accelerating rivalry from Google Inc., Microsoft Corp. and, now, Facebook Inc. Photographer: David Paul Morris/Bloomberg via Getty Images

Key Speakers At Apple's Worldwide Developer Conference

Bloomberg

The Apple Inc. logo is displayed on the back of the new MacBook Pro, with retina display, in San Francisco, California, U.S., on Monday, June 11, 2012. Apple Inc. is releasing a fresh lineup of computers and software tools to woo consumers and keep developers making applications amid accelerating rivalry from Google Inc., Microsoft Corp. and, now, Facebook Inc. Photographer: David Paul Morris/Bloomberg via Getty Images

The Apple Inc. logo is displayed on the back of the new MacBook Pro, with retina display, in San Francisco, California, U.S., on Monday, June 11, 2012. Apple Inc. is releasing a fresh lineup of computers and software tools to woo consumers and keep developers making applications amid accelerating rivalry from Google Inc., Microsoft Corp. and, now, Facebook Inc. Photographer: David Paul Morris/Bloomberg via Getty Images